Elba (Ala.) four-star Auburn running back commit Alvin Henderson put on one of the best shows you could ever see in high school football on Friday. His team lost. Despite rushing for a whopping 435 yards and 10 touchdowns, Elba fell to McKenzie 80-78. Henderson also scored three 2-point conversions — meaning he broke the Alabama state record for single-game touchdowns and the record for single-game points with 66. Henderson has been committed to Auburn since he flipped to the Tigers from Penn State on June 21. He had initially pledged to the Nittany Lions in the spring. Since choosing the in-s…